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Model: 377C01

$810.00 USD
(Pricing valid in US only)

Datasheet

1/4" free-field, prepolarized condenser microphone, typical sensitivity= 2 mV/Pa (+/-3 dB), 5.4 Hz to 80 kHz (+/- 2 dB).

  • Nominal Microphone Diameter: 1/4"
  • Frequency Response Characteristic: Free-Field
  • Frequency Range: (+2 / -3dB) 3 to 100000 Hz (6 to 100000 Hz)
  • Inherent Noise: <35 dB(A) re 20 µPa
  • Dynamic Range: (3% Distortion Limit) 168 dB re 20 µPa

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 English:SI: 
Performance
Nominal Microphone Diameter1/4"1/4" 
Frequency Response Characteristic (at 0° incidence)Free-FieldFree-Field 
Open Circuit Sensitivity2.0 mV/Pa2.0 mV/Pa[2] 
Open Circuit Sensitivity (±3 dB)-54 dB re 1 V/Pa-54 dB re 1 V/Pa[2] 
Frequency Range (+2 / -3 dB)3 to 100000 Hz6 to 100000 Hz 
Frequency Range (±2 dB)4 to 80000 Hz4 to 80000 Hz 
Frequency Range (+/-1 dB)6 to 12500 Hz3 to 12500 Hz 
Lower Limiting Frequency (-3 dB)0.25 to 3.0 Hz0.25 to 3.0 Hz 
Resonant Frequency (90° Phase Shift)75000 Hz75000 Hz[1] 
Inherent Noise<35 dB(A) re 20 µPa<35 dB(A) re 20 µPa 
Dynamic Range(3% Distortion Limit)168 dB re 20 µPa168 dB re 20 µPa[1] 
Standards Designation (IEC 61094-4)WS3FWS3F 
Environmental
Temperature Range (Operating)-40 to +248 °F-40 to +120 °C 
Temperature Coefficient of Sensitivity (+14 to +122°F (-10 to +50°C))0.003 dB/°F0.006 dB/°C[2][1] 
Static Pressure Coefficient-0.009 dB/kPa-0.009 dB/kPa[2][1] 
Humidity Coefficient of Sensitivity (0 to 100%, non-condensing)±0.001 dB/%RH±0.001 dB/%RH[2] 
Influence of Axial Vibration (0.1g (1 m/s²))60 dB re 20 µPa60 dB re 20 µPa[1] 
Electrical
Capacitance (Polarized)4.5 pF4.5 pF[1] 
Polarization Voltage0 V0 V[3] 
Physical
Housing MaterialStainless AlloyStainless Alloy 
VentingRearRear 
Mounting Thread (Preamplifier)0.2244 - 60 UNS5.7 mm - 60 UNS 
Mounting Thread (Grid)0.25 - 60 UNS6.35 mm - 60 UNS 
Size - Diameter (with grid)0.28 in7.0 mm 
Size - Diameter (without grid)0.25 in6.4 mm 
Size - Height (with grid)0.41 in10.5 mm 
Size - Height (without grid)0.36 in9.1 mm 
Weight0.06 oz1.8 gm[1] 

All specifications are at room temperature unless otherwise specified.



Product Notes
[1] Typical.
[2] re 250 Hz
[3] Prepolarized
Accessories:
Supplied
ACS-20Calibration of Precision Condensor Microphones(1)
Optional Versions:
No optional versions
Product Documents
Additional Downloads
Microphone - Safe Handling and Maintenance

Prepolarized vs. externally polarized microphones

Comparison of 1/2" vs 1/4" condenser microphones